Headphone



FIG. 1 is a perspective view of a headphone showing my new design, wherein the interior portion of an ear cup of the headphone is a mirror image of the interior portion of the other ear cup;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a left side elevational view thereof.

Portions of the figures that are shown as broken lines are for illustrative purpose only and form no part of the claimed design. 

The ornamental design for a headphone, as shown and described. 